Excavator



FIG. 1 is a top front left perspective view of an excavator showing our new design;

FIG. 2 is a top front right perspective view thereof;

FIG. 3 is a top rear perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a right side view thereof;

FIG. 10 is a left side view of the excavator of FIG. 1 in an alternate position; and,

FIG. 11 is an enlarged view thereof.

The broken lines in the Figures show portions of the excavator, which form no part of the claimed design. 

CLAIM The ornamental design for an excavator, as shown and described. 